Live ring

Related to Live ring: life ring
(Engin.) a circular train of rollers upon which a swing bridge, or turntable, rests, and which travels around a circular track when the bridge or table turns.

See also: Live

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
He was too far away to hear their doors shut; but every door in the coral caves where they live rings a tiny bell when it opens or closes (as in all the nicest houses on the mainland), and he heard the bells.
St Andrews farmer George Milne bought 200 lambs which will be sold back through the United Auctions live ring in April or May.
A shortage of prime cattle numbers meant buyers were left short of requirements - take advantage of a good live ring trade.
While the finished price at abattoirs remains low, Chris Dodds, executive secretary of the LAA, said prime cattle in the live ring have become better to sell, with prices rising.
Amongst other components, FSG FERNSTEUERGERAETE will present live ring encoders with a spring-loaded external gear wheel that serve to detect the swing angle and speed of telescopic crane booms.
Chris Dodds, of the Livestock Auctioneers Association, said: "In my opinion the live ring has been a price-setter rather than a price-taker over the last 12 months."
"Sadly, a reduction in the use of the live ring and a reliance upon direct supply contracts has left us vulnerable to processors at times like this.
Warcop, near Appleby in Cumbria, is used as an MoD live ring area.
Lieutenant Colonel Will Davies commanding ocer of First Queens Dragoons Guards said: "is exercise is one of many we do prior to going to Afghanistan, this particular one is to practice our live ring and all of our weapons systems, it's an unparalleled area to do it in, although a bit cold and wet."